osquery-defense-kit/detection/c2/unexpected-icmp-socket.sql

18 lines
397 B
SQL

-- Unexpected programs speaking over ICMP (state-based)
--
-- references:
-- *https://attack.mitre.org/techniques/T1095/ (C2: Non-Application Layer Protocol)
--
-- tags: ephemeral state net critical
SELECT
pop.pid,
p.path,
p.cmdline
FROM
process_open_sockets pop
JOIN processes p ON pop.pid = p.pid
WHERE
family = 2 -- PF_INET
AND protocol = 1 -- ICMP
AND p.name NOT IN ('ping')